Providing access by a client application program over an internet protocol (IP) network to a server application program instance
a server application and client application technology, applied in the field of providing access by a client application program over an internet protocol (ip) network to a server application program instance, can solve the problems of affecting the service life of the server application program. the problem of requiring significant network and server computer resources
Active Publication Date: 2013-07-23
INT BUSINESS MASCH CORP
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AI Technical Summary
Benefits of technology
[0014]Embodiments of the invention use a feature of the IPv6 protocol which allows a given server to have many IP addresses. This feature can be used to allocate a unique temporary IP address by a server instance for a particular client in order to provide the ability for the client to re-establish access to that particular server instance without having to keep open the socket / connection to the server. Thus, the router and other physical resources required to keep such a socket / connection open may instead be made available for other users. At a later time, the client will be able to reopen contact with the specific server program instance previously used through use of the allocated IP address.
Problems solved by technology
One problem is that if the connection is removed or lost, the client application program will be unable to reconnect to the same instance of the server application program and elements of the created data or objects may be lost.
Furthermore, maintaining the connection requires significant network and server computer resources.
Method used
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Embodiment Construction
[0024]With reference to FIG. 1, a computer system 101 comprises a server computer 102 connected to a Wide Area Network (WAN) 103 along with a client computer 104 and a Domain Name Server (DNS) 105. The server computer 102 and client computer 104 are arranged with software arranged to enable communication across the network 103 using the Transmission Control Protocol / Internet Protocol (TCP / IP) communications protocol. In the present embodiment, TCP / IP version 6 (IPv6) protocol is used. IPv6 addresses are written as eight groups of four hexadecimal digits separated by colons and are typically composed of two logical parts: a 64-bit network prefix, and a 64-bit host part. The host part is commonly used to address an instance of a server application program and can by dynamically changed, that is, a server resource may, from time to time, effectively change its IPv6 address. The DNS 105 provides translation of network addresses in the form of Universal Resource Locators (URLs), such as ...
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A method, apparatus and software is disclosed in which a temporary IP address is assigned to a selected instance of a server application program so as to provide processing continuity for processing with a client application program.
Description
FIELD OF THE INVENTION[0001]The present invention relates to a method, apparatus, or software for providing access by a client application program over an Internet Protocol (IP) network to a server application program instance.BACKGROUND OF THE INVENTION[0002]In client / server computer systems, in order to provide increased server system bandwidth, a number of instances of a server application program may be provided. All instances of the server application program share the same IP address and are arranged to accept communications on the same network port. A network port is an identification number used to pair incoming network data traffic to a given process or application running on the receiving computer. In other words, several instances of the server application program are active and waiting upon the IP address and port used by a given client application program. When a client application program connects to the IP address and port, one of the server instances is selected to e...
Claims
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IPC IPC(8): G06F15/16
CPCH04L29/12207H04L61/20H04L67/1027H04L67/14H04L67/1002H04L67/142H04L61/50H04L67/1001G06F9/44G06F15/16G06F15/173
Inventor ANDREWS, PAULINE E.HARRIS, ROBERTPLUM, DENNIS L.
Owner INT BUSINESS MASCH CORP